b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac

Analysis

max time kernel
150s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 08:06

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General

Target

b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac.dll
Size

27KB
MD5

abb6f77a22bdeafc6092d2b9049b7c8b
SHA1

771455b77e06a27e793f9fa7bc9109c775b64d4e
SHA256

b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac
SHA512

3668534bc81bcc6d0249540e900c90b57c3ab683b33bba3d2e1f16a571f851d1fee496e05d2f8ee564df1e8ae31e42e49c03a51b2f9170f4994f2e001183150f
SSDEEP

768:bowyehckZ8QI13K0XNvyyWVQA4aS17KiT99h1hJov:dl9UK0zVNtKiTDhs

Score

8^/10

persistence upx

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
41	4156	rundll32.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5080-133-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/5080-134-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/5080-139-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/5080-141-0x0000000002380000-0x0000000002394000-memory.dmp	upx
behavioral2/memory/4156-149-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4156-152-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4156-153-0x0000000010000000-0x0000000010014000-memory.dmp	upx

Loads dropped DLL 3 IoCs

pid	Process
5080	rundll32.exe
5080	rundll32.exe
4156	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\qoMdEXNE.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\qoMdEXNE.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\qoMdEXNE.dll	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DABB1C43-1596-49C4-9E4D-51AE7A1518BB}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DABB1C43-1596-49C4-9E4D-51AE7A1518BB}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DABB1C43-1596-49C4-9E4D-51AE7A1518BB}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DABB1C43-1596-49C4-9E4D-51AE7A1518BB}\InprocServer32\ = "C:\\Windows\\SysWow64\\qoMdEXNE.dll"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5080	rundll32.exe
5080	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe
4156	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
5080	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5080	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5080	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3368 wrote to memory of 5080	3368	rundll32.exe	76
PID 3368 wrote to memory of 5080	3368	rundll32.exe	76
PID 3368 wrote to memory of 5080	3368	rundll32.exe	76
PID 5080 wrote to memory of 608	5080	rundll32.exe	3
PID 5080 wrote to memory of 4156	5080	rundll32.exe	87
PID 5080 wrote to memory of 4156	5080	rundll32.exe	87
PID 5080 wrote to memory of 4156	5080	rundll32.exe	87

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:608

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3368
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5080
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\qoMdEXNE.dll,a
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:4156

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\qoMdEXNE.dll

Filesize
27KB

MD5
abb6f77a22bdeafc6092d2b9049b7c8b

SHA1
771455b77e06a27e793f9fa7bc9109c775b64d4e

SHA256
b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac

SHA512
3668534bc81bcc6d0249540e900c90b57c3ab683b33bba3d2e1f16a571f851d1fee496e05d2f8ee564df1e8ae31e42e49c03a51b2f9170f4994f2e001183150f

Download Submit
C:\Windows\SysWOW64\qoMdEXNE.dll

Filesize
27KB

MD5
abb6f77a22bdeafc6092d2b9049b7c8b

SHA1
771455b77e06a27e793f9fa7bc9109c775b64d4e

SHA256
b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac

SHA512
3668534bc81bcc6d0249540e900c90b57c3ab683b33bba3d2e1f16a571f851d1fee496e05d2f8ee564df1e8ae31e42e49c03a51b2f9170f4994f2e001183150f

Download Submit
C:\Windows\SysWOW64\qoMdEXNE.dll

Filesize
27KB

MD5
abb6f77a22bdeafc6092d2b9049b7c8b

SHA1
771455b77e06a27e793f9fa7bc9109c775b64d4e

SHA256
b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac

SHA512
3668534bc81bcc6d0249540e900c90b57c3ab683b33bba3d2e1f16a571f851d1fee496e05d2f8ee564df1e8ae31e42e49c03a51b2f9170f4994f2e001183150f

Download Submit
C:\Windows\SysWOW64\qoMdEXNE.dll

Filesize
27KB

MD5
abb6f77a22bdeafc6092d2b9049b7c8b

SHA1
771455b77e06a27e793f9fa7bc9109c775b64d4e

SHA256
b6a6994786e02939a224656aa7087c8b8b5722de9c2ed1d0fe30dff4235c24ac

SHA512
3668534bc81bcc6d0249540e900c90b57c3ab683b33bba3d2e1f16a571f851d1fee496e05d2f8ee564df1e8ae31e42e49c03a51b2f9170f4994f2e001183150f

Download Submit
memory/4156-149-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4156-150-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download
memory/4156-153-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4156-151-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download
memory/4156-152-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/5080-143-0x00000000023A0000-0x00000000023A6000-memory.dmp

Filesize
24KB

Download
memory/5080-139-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/5080-134-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/5080-142-0x00000000008A0000-0x00000000008A6000-memory.dmp

Filesize
24KB

Download
memory/5080-141-0x0000000002380000-0x0000000002394000-memory.dmp

Filesize
80KB

Download
memory/5080-133-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/5080-140-0x00000000008A0000-0x00000000008A6000-memory.dmp

Filesize
24KB

Download